<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <link rel="stylesheet" href="./css/demo01.css" />
</head>

<body>
    <!-- 用户信息列表开始 -->
    <div id="row">
        <h2>用户信息表</h2>
        <ul id="head">
            <li>姓名</li>
            <li>年纪</li>
            <li>班级</li>
            <li>修改</li>
            <li>删除</li>
        </ul>
        <ul>
            <li>张三</li>
            <li>18岁</li>
            <li>一年级</li>
            <li><input type="button" value="修改" id="reset" class="btn" /></li>
            <li><input type="button" value="删除" id="del" class="btn" /></li>
        </ul>
        <ul>
            <li>李四</li>
            <li>20岁</li>
            <li>二年级</li>
            <li><input type="button" value="修改" id="reset" class="btn" /></li>
            <li><input type="button" value="删除" id="del" class="btn" /></li>
        </ul>
        <ul>
            <li>王五</li>
            <li>21岁</li>
            <li>三年级</li>
            <li><input type="button" value="修改" id="reset" class="btn" /></li>
            <li><input type="button" value="删除" id="del" class="btn" /></li>
        </ul>
    </div>
    <!-- 用户信息列表结束 -->
    <div style="clear: both;"></div>
    <!-- 增加，查询操作user部分开始-->
    <div id="user">
        <ul class="user">
            <li><input type="button" value="增加" id="add" class="btn1" /></li>
            <li><input type="button" value="查询" id="search" class="btn1" /></li>
        </ul>
    </div>
    <!-- 增加，查询操作user部分开始-->
    <!-- 蒙层部分开始 -->
    <div id="cover">
        <form action="get">
            <p>
                <label>姓名：</label
          ><input
            type="text"
            name="name"
            id="name"
            placeholder="请输入姓名"
            required
          />
        </p>
        <span style="display: none;">此字段不允许为空</span>
        <p>
          <label>年纪：</label
          ><input
            type="text"
            name="age"
            id="age"
            placeholder="请输入年龄"
            required
          />
        </p>
        <span style="display: none;">此字段不允许为空</span>
        <p>
          <label>班级：</label
          ><input
            type="text"
            name="class"
            id="class"
            placeholder="请输入班级"
            required
          />
        </p>
        <span style="display: none;">此字段不允许为空</span>
        <input type="button" name="sure" value="确认" class="sure" />
        <input type="button" value="清空" name="clear" class="clear" />
      </form>
    </div>
    <!-- 蒙层部分结束-->

    <script src="jquery-1.12.4.min.js"></script>
    <script src="js/demo01.js"></script>
  </body>
</html>